it dates back to the Precambrian era
Answer: Sound waves and some earthquake waves are longitudinal waves. Ocean, light and other earthquake waves are transverse waves.
Answer:
A. 1:2:1 Ratio
Explanation:
Because there are 2 of the same physical appearances and 2 different ones… therefore it’s be 1 for the first box 2 for the identical ones and 1 for the bottom right box: 1:2:1
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The function of the digestive system is to (a) Break down food.
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